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參數(shù)資料
| 型號： | PSD913F2 |
| 英文描述： | 200V 100kRad Hi-Rel Single N-Channel TID Hardened MOSFET in a SMD-2 package; Similar to IRHNA7260 with optional Total Dose Rating of 300kRads |
| 中文描述： | 可配置的存儲系統(tǒng)級芯片的8位微控制器 |
| 文件頁數(shù)： | 45/94頁 |
| 文件大?。?/td> | 463K |
| 代理商： | PSD913F2 |
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PSD913F1
Preliminary
44
The
PSD913F1
Functional
Blocks
(cont.)
9.4 I/OPorts
There are four programmable I/O ports: Ports A, B, C, and D. Each of the ports is eight
bits except Port D, which is 3 bits. Each port pin is individually user configurable, thus allow-
ing multiple functions per port. The ports are configured using PSDsoft or by the microcon-
troller writing to on-chip registers in the CSIOP address space.
The topics discussed in this section are:
General Port Architecture
Port Operating Modes
Port Configuration Registers
Port Data Registers
Individual Port Functionality.
9.4.1 General Port Architecture
The general architecture of the I/O Port is shown in Figure 21. Individual Port architectures
are shown in Figures 22 through 24. In general, once the purpose for a port pin has been
defined, that pin will no longer be available for other purposes. Exceptions will be noted.
As shown in Figure 21, the ports contain an output multiplexer whose selects are driven
by the configuration bits in the Control Registers (Ports A and B only) and PSDsoft. Inputs
to the multiplexer include the following:
J
Output data from the Data Out Register
J
Latched address outputs
J
General Purpose PLD (GPLD) outputs (external chip selects)
The Port Data Buffer (PDB) is a tri-state buffer that allows only one source at a time to be
read. The PDB is connected to the Internal Data Bus for feedback and can be read by the
microcontroller. The Data Out, Direction and Control Registers, and port pin input are all
connected to the PDB.
The contents of these registers can be altered by the microcontroller. The PDB feedback
path allows the microcontroller to check the contents of the registers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PSD913F2V | 200V 100kRad Hi-Rel Single N-Channel TID Hardened MOSFET in a SMD-2 package; A IRHNA7260 with Standard Packaging |
| PSD913F2(中文) | Configurable Memory System on a Chip for 8-Bit Microcontrollers(用于8位MCU的可配置存儲器系統(tǒng)) |
| PSD934F2(中文) | Configurable Memory System on a Chip for 8-Bit Microcontrollers(用于8位MCU的可配置存儲器系統(tǒng)) |
| PSD913F2 | Configurable Memory System on a Chip for 8-Bit Microcontrollers(用于8位MCU的可配置存儲器系統(tǒng)) |
| PSD934F2 | Configurable Memory System on a Chip for 8-Bit Microcontrollers(用于8位MCU的可配置存儲器系統(tǒng)) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSD913F2-12B81 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F2-12B81I | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F2-12J | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F2-12JI | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
| PSD913F2-12JIT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash In-System Programmable ISP Peripherals For 8-bit MCUs |
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